#include<bits/stdc++.h>
#define F first 
#define S second
using namespace std; 
int T[501][501];
bool odw[501][501];
int n,w;
 
void dfs(int x,int y,int kary){
    odw[x][y]=1;
    if(0<=x-1&&odw[x-1][y]==0){
        if(T[x-1][y]<w)    dfs(x-1,y,kary);
        else if(kary>0)    dfs(x-1,y,kary-1);
    }
    if(x+1<n&&odw[x+1][y]==0){
        if(T[x+1][y]<w)   dfs(x+1,y,kary);
        else if(kary>0)   dfs(x+1,y,kary-1);
    }
    if(0<=y-1&&odw[x][y-1]==0){
        if(T[x][y-1]<w)    dfs(x,y-1,kary);
        else if(kary>0)    dfs(x,y-1,kary-1);
    }
    if(y+1<n&&odw[x][y+1]==0){
        if(T[x][y+1]<w)    dfs(x,y+1,kary);
        else if(kary>0)    dfs(x,y+1,kary-1);
    }
}
 
int main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
    int a,b,c,d,kary;
    int p=-1,k=0,sr;
    cin>>n>>kary>>a>>b>>c>>d;
    a--; b--; c--; d--;
    if(abs(a-c)+abs(b-d)<kary){
    	cout<<"TRIV";
    	return 0;
    }
    for(int i=0;i<n;i++){
        for(int j=0;j<n;j++){
            cin>>T[i][j];
            if(k<T[i][j]) k=T[i][j];
        }
    }
    if(a==c&&b==d){
    	cout<<T[a][b];
    	return 0;
    }
    k++;
    while(k-p>1){
        w=(p+k)/2;
        for(int i=0;i<n;i++)    for(int j=0;j<n;j++)    odw[i][j]=0;
        if(T[a][b]>=w) dfs(a,b,kary-1);
        else dfs(a,b,kary);
        if(odw[c][d]==1)     k=w;
        else    p=w;
    }
    cout<<p;
}

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

MiAwCjEgMiAyIDEKMiAxCjMgNwo=

2 0
1 2 2 1
2 1
3 7